Ore-concentrator belt



(No Model.)

J. M. ADAMS. ORE GONOBNTRATOR BELT.

No. 409,091. Patented Aug. 13, 1889.

mmifil N PETERS. Phulo-Lllhoglaphun Waahmglan, n. c.

UNITED STATES PATENT OFFICE.

JOHN M. ADAMS, OF SAN FRANCISCO, CALIFORNIA.

ORE-CONCENTRATOR BELT.

SPECIFICATION forming part of Letters Patent No. 409,091, dated August 13, 1889. Application filed Apn'l 24, 1889- Serial No. 308,479. (No model.)

To all whom it may concern:

Be it known that I, JOHN M. ADAMS, of the city andcounty of San Francisco, State of California, have invented an Improvement in Ore-Concentrator Belts; and I hereby declare the following to be a full, clear, and exact description of the same.

My invention relates generally to that class of ore-concentrators in which an endless traveling belt is employed as a concentrating-surface; and it relates particularly to the said belts.

My invention consists in a novel improvement in that form of ore-concentrating belts which are provided with ox erflow-apertures, the mouths or edges of which are elevated above the pulp-holding surface.

The object of my invention is to better direct the overflow from the pulp-holding surface by discharging it at the lower end of the machine and not allowing it to fall down directly under the belt, which results in-injury to and undue wear on the rollers on which the belt rests and travels and other portions of the machine, and also results in wear on the belt itself, on its under surface, caused by the sand working between said belt and rollers.

Referring to the accompanying drawings for a more complete explanation of my invention, Figure 1 is a perspective view of my belt. Fig. 2 is a cross-section of same. Fig. 3 is a cross-section showing the belt made up of a number of narrow independent belts.

A is my belt. This is made of suitable material, usually rubber, and is provided with the raised side flanges a. The surface is provided with flanges B, which are preferably formed integral with the belt, though they may be otherwise formed and secured thereto, as may be desirable. These flanges are placed longitudinaly of the beltthat is to say, in the line of the travel of the belt, and

they divide the belt up into a series of par-.

allel concentrating surfaces, .(marked C.) The flanges are placed in pairs, separated by a space forming a channel between them, (represented by 1),) and, as these flanges are formed with or secured directly to the surface of the belt, the channels 6 have solid bottoms, which extend their whole length. Herein lies the novelty in my invention.

I am aware that a belt is known in which overflow-apertures are made directly through it, and also that such apertures have been made at intervals between flanges placed longitudinally of the belt, which permit the overflow from the surface of the belt to pass directly down through it; but these belts differ essentially from mine in that their overflow passages or apertures have no bottom but open down directly through the belt.

In practice concentrator-belts of this class are mounted upon a frame-work consisting of parallel rollers D and drums E. The ore pulp and water are fed from suitable devicessuch as are represented by Fdirectly upon the pulp surfaces, which in this case are the runs C. The overflow passes into the channels or passages 12, and in case these had no bottom this overflow would pass directly down through them and injure therollers or belt, and, in fact, the entire machine; but by my construction, making the overflow-channels b with a continuous and solid bottom, the overflow or discharge, instead of passing directly down through the channels, flows along over their bottoms as it would on the surface of the belt, and is discharged suitably at the lower end of the belt with thedischarge from the beltsurface proper. These overflow-channels I) need not necessarily be made in a single belt, as they may be formed between the side flanges of narrow independent belts, as shown in Fig. 3, in which case a suitable bottom will be provided for them, such as an underlying solid apron or belt G, (see Fig. 3,) to which the narrow belts are secured or formed with it or rest thereon, so as to provide an immediate and continuous bottom for said channels.

Having thus described my invention, what I claim as new, and desire to secure by Let ters Patent, isa 1. In a belt for an ore-concentrator, the combination therewith of continuous overflow channels or passages formed on or with said belt and having continuous bottoms, whereby the overflow is carried down to the end of the belt and discharged, substantially as described.

2. In an ore-concentrator belt, the combina tion, with the belt, of raised flanges formed with or secured to the surface of the belt and continuous bottoms for said channels or passages, whereby the overflow is carried to the lower end of the belt and discharged, substantially as described.

In witness whereof I have hereunto set my hand.

JOHN M. ADAMS.

\Vitnesscs:

11'. NOURSE, J. U. BLooD. 

